Which material for fence - Router Forums
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post #1 of 26 (permalink) Old 03-27-2009, 06:21 AM Thread Starter
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Default Which material for fence

Hi everybody.

I did my own router table one year ago with its fence in MDF.

To increase the safety, I made two "moveable fence" to redure the opening of the origine fence.

The original fence is square with the table top.
When I place the two moveable fences on the original fence, The fence loose its squarness with the table top. The lesft side made an actue angle with the table top, and the other side made an obtuse angle

The two fence parts are made from the same MDF panel (18mm). But it seems that the thcikness varies!!!

Is it better to make fence with MDF or plywood ?

Thanks for your help
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post #2 of 26 (permalink) Old 03-27-2009, 06:39 AM
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Good morning onap I think that the MDF is good. It sounds like you have the right idea, Would it be possible to shim the fences to be parallel? I would start there, as long as the MDF is sound

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post #3 of 26 (permalink) Old 03-27-2009, 08:20 AM
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I also choose the MDF. I agree with Howard, sounds like you have the right idea going.

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post #4 of 26 (permalink) Old 03-27-2009, 09:01 AM
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Hello onap

I have the same problem with my second fence (photo #1). Its made with MDF but the front sliding parts are made with plywood. I dont know if the stain / varnish is enough to make the fence out of square or something else. I sanded all surfaces and still had the same problem.

So Im making now a new fence based on ShopNotes magazine idea (photo #2). The fence is made with vaneer plywood and the front sliding fence is made from Hardboard (its like MDF). I will be finishing this fence shortly and I will post the photos here.

I will choose plywood for the fence

Nicolas
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post #5 of 26 (permalink) Old 03-27-2009, 10:10 AM
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Whatever material is selected, it's helpful to remember that it's not a machined surface. As such, some "tuning" may be necessary to achieve flat and square. How "flat" and how "square" depends on the level of precision desired.

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post #6 of 26 (permalink) Old 03-27-2009, 10:37 AM
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Hi,

I have nothing against MDF, in fact, it's wonderful stuff. I do suggest looking at HDPE or UHMW. This is what the OP fences are made of, I've used mine for several yrs now and haven't had any trouble with them.

Just remembered, there are some aluminum fences. I believe Bj has made a few.

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Last edited by Hamlin; 03-27-2009 at 10:39 AM. Reason: added info
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post #7 of 26 (permalink) Old 03-27-2009, 12:24 PM Thread Starter
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Quote:
Originally Posted by Ralph Barker View Post
Whatever material is selected, it's helpful to remember that it's not a machined surface. As such, some "tuning" may be necessary to achieve flat and square. How "flat" and how "square" depends on the level of precision desired.
Thanks all for yor answers.

I do some measurement on the two fences: Each fences has a thickness variation about .15 mm (0,001 in) form one corner to the opposite one.

Like you say, I think i will use some tape to shim (is it the correct term)


PS: Sorry for my poor english
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post #8 of 26 (permalink) Old 03-27-2009, 02:23 PM
 
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Quote:
Originally Posted by Hamlin View Post
Hi,

I have nothing against MDF, in fact, it's wonderful stuff. I do suggest looking at HDPE or UHMW. This is what the OP fences are made of, I've used mine for several yrs now and haven't had any trouble with them.

Just remembered, there are some aluminum fences. I believe Bj has made a few.
I need to make a fence for my new table. I was thinking about using hardwood with a UHMW front face. I can get it nearby at Ptreeusa. I have one question...is it possible to add t track to the UHMW?

Thanks
Bill
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post #9 of 26 (permalink) Old 03-27-2009, 09:04 PM
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Bill, there are better choices for your fence. Baltic Birch plywood with a high pressure laminate lets your material slide easy, and you can use glue or contact cement with these. There is no glue for UHMW.

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post #10 of 26 (permalink) Old 03-27-2009, 09:36 PM
 
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Bill, there are better choices for your fence. Baltic Birch plywood with a high pressure laminate lets your material slide easy, and you can use glue or contact cement with these. There is no glue for UHMW.
Mike, I'm going to be buying some 1/2" maple plywood to make the cabinet for the top (when I ever finish it). I thought the maple with walnut facing would look nice (since I edged the top with walnut). And I will have some extra, so I might use that for the fence. But I don't understand what you mean by high pressure laminate. Is that something I could do myself?

Thanks
Bill

Last edited by gazippoman; 03-27-2009 at 09:39 PM.
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